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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1602 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Compressor Replacement (LB7) >> Installation Procedure

Installation Procedure

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  1. Add the proper amount of PAG oil to the compressor crankcase. Refer to REFRIGERANT SYSTEM CAPACITIES  . 
    NOTE: Refer to FASTENER NOTICE .
  2. Install the A/C compressor drain plug.

    Tighten 

    Tighten the drain plug to 20 N.m (15 lb ft).

  3. Install the A/C compressor.
  4. Install the A/C compressor mounting bolts.

    Tighten 

    Tighten the bolts to 50 N.m (37 lb ft).

  5. Connect the electrical connection.
  6. Install the A/C discharge hose to the compressor using new sealing washers.
    Fig 1: A/C Compressor & Mounting Bolts
    G01478979Courtesy of GENERAL MOTORS CORP.
  7. Install the A/C discharge hose bolt to the A/C compressor.

    Tighten 

    Tighten the bolt to 16 N.m (12 lb ft).

  8. Install the A/C suction hose to the compressor using new sealing washers.
  9. Install the A/C suction hose bolt to the A/C compressor.

    Tighten 

    Tighten the bolt to 16 N.m (12 lb ft).

  10. Install the drive belt. Refer to appropriate Engine MECHANICAL article
  11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  12. Leak test the fittings of the component using the J 39400-A. 
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